Concrete floor.



No. 692,54l.

Pafllfed .Feb.-4, 1902. Pf V. PAHSY. CONCRETE FLOOR. @ppuacion med sept. 2s, 1901.)

(No Modal.)

f /////////Wv/////////l//l//fr///////////////// 1HE Namus Enns a.. no1-aimee. wAsmNnToN. c.

UNITED STATES PATENT OFFICE.

PAUL VICTOR PARSY, OF PERNES-EN-ARTOIS, FRANCE.

CON-CRETE FLOOR.

SPECIFICATION forming part of Letters Patent No. 692,541, dated February 4, 1902. Application filed September 23,1901. Serial No. 76,266. (No model.)

To a/ZZ whom t may concern;- M g Be it known that I, PAUL VICTOR PARSY, a citizen of the French Republic, anda resident of Pernes-en-Artois, Pas-'de-Calais, France, have invented certain new and useful Improvements in Concrete Floors, of which the following is a specification. g

The object of my invention is an econom-` ical and rapid method of constructing iioors made of armed concrete.

Thisinvention consistsin the combined use of I-girders as usually sold in commerce and of special flags, their shape being shown in the accompanying drawings, in which- Figure l is an elevation view. Fig. 2 is a section on A B. Fig. 3 is a plan View of the flag used in this system of flooring. The ends of the strengthening-strips a rest on the upper iianges of the I-girder, while the lug b bears against the side of the said girder.

Fig. 4 shows a cross-section of the door. Fig.

5 is a section -on C D of Fig. 4:. Fig. 6 shows an arrangement in which the iron m is cornpletely embedded in the concrete c. In this case the lug of the flag a is omitted.

In order to construct a door, the irons 'm fm,V

are arranged in the usual manner. Then the liags n n are placed in position so as to bear on the I-girders, but only by the endslof their strengthening-irons, at the same time leaving a free space around the upper ange of the said I-girders. In this manner a door is constituted upon which is placed a layer c of concrete', which enters into the spaces left between the flags, Figs. l.tand 5,. The strengthened flags are thus held together and constitute a floor, which becomes rigid after the concrete hardens. The latter passes underneath the upper flange of theI-girders and surrounds the said flange, thus assuringv the strength and security of the door. y

It must be well understood that without departing from the scope of the present invention girders of steel or othersuitable metal or wooden joists may be used; also, the shape of the said girders may be altered to suit circumstances. The llangesof the girders may be unequal and unsymmetrical; also, differentshaped girders allowing the concrete to set around them may be used. The shape as well as the dimensions of the fiags may vary. They may be hollow or solid and made of plaster, cement, or other suitable material. The lugs of the said flags may be of any de, gree of strength or may be omitted altogether. Similarly the composition and nature of the concrete can be ehanged,.provided it fulfils the function hereinbef'ore described.

Having now fully described my invention, what I claim, and desire to secure by Letters l. The combination with I-beams, and the like, of strengthening-strips Vengaging the heads thereof, flags carried by the strengthening-strips having a free space between their ends, and the heads of the beams, and concrete engaging the ends of the strengtheningstrips and the head of the beam, substantially as described.

, 2. The combination with I-beams, and the like of iiat strengthening-strips having their ends engaging the heads of the said beams,- ags carried'by the said strips and having a free space between their endsand the heads of the beams, lugs carried by the flags and engaging the web of the beam, and concrete engaging the ends of the strengthening-strips, the heads of the beam, and said lugs, substantially as described. l

In testimony whereof I have hereunto set my hand in presence of two witnesses.

PAUL vieron PARSY.

Witnesses:

E. OREYEUSTLY, HENRY F. HARVEY. 

